
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
cathepsin L Double Nickase Plasmid (h) | sc-400804-NIC | 20 µg | $410.00 | |||
cathepsin L Double Nickase Plasmid (h2) | sc-400804-NIC-2 | 20 µg | $410.00 |
CTSL encodes human cathepsin L, a lysosomal cysteine protease that mediates intracellular protein turnover through endolysosomal degradation and contributes to antigen processing via MHC class II pathways. Cathepsin L participates in autophagy-lysosome flux, extracellular matrix remodeling through pericellular proteolysis, and regulated processing of select proproteins within acidic compartments. Dysregulated CTSL activity or expression has been linked to altered proteostasis and invasive cell behavior in cancer biology, and to inflammatory and neurodegenerative contexts where lysosomal function is perturbed. As a central node in lysosome-dependent catabolism, CTSL is frequently studied to interrogate vesicular trafficking, protease networks, and stress-adaptive remodeling of the endolysosomal system.
cathepsin L Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the CTSL locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within CTSL. When directed to adjacent sites on opposite DNA strands, the two nickases generate offset single-strand nicks that together produce a staggered double-strand break, requiring coordinated on-target activity from both guides. The resulting DNA break is resolved by endogenous cellular repair pathways, most commonly through non-homologous end joining (NHEJ), leading to insertions or deletions that disrupt CTSL function. By requiring dual sgRNA engagement at the target locus, the double nicking approach enhances editing specificity and provides a complementary CRISPR strategy for applications where additional control over targeting precision is desired.
To support efficient identification of edited cells, one plasmid encodes GFP for fluorescent visualization of transfected populations, while the companion plasmid carries a puromycin resistance gene for antibiotic selection. Together, these features support efficient enrichment of co-transfected populations and simplify the validation of CTSL-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.